﻿body {
}
.white_content {
    display:block; 
    z-index:9999; 
    text-align: center;
    opacity:.90;
    /*filter:Alpha(opacity=90);*//* 只支持IE6、7、8、9 */
    /*position:static;*/ /* IE6、7、8只能设置position:static(默认属性) ，否则会导致子元素继承Alpha值 */
    position: absolute; 
    width:500px; height:100px; 
    background:#808080;
}
.white_content2 {
    display:block; 
    z-index:9999; 
    text-align: center;
    opacity:.90;
    /*filter:Alpha(opacity=90);*//* 只支持IE6、7、8、9 */
    /*position:static;*/ /* IE6、7、8只能设置position:static(默认属性) ，否则会导致子元素继承Alpha值 */
    position: absolute; 
    width:auto; height:auto; 
    background:#808080;
}
.black_content {
    display:none; 
    z-index:9999; 
    text-align: center; 
    position: absolute; 
    width:600px; height:100px; 
    background:#fff;
}
.black_content2 {
    display:none; 
    z-index:9999; 
    text-align: center; 
    position: absolute; 
    width:auto; height:auto; 
    background:#fff;
}
.black_overlay{
    display: none;
    position: absolute;
    top: 0%;
    left: 0%;
    width: 100%;
    height: 100%;
    background-color: white;
    z-index:1001;
    -moz-opacity: 0.8;
    opacity:.10;
    filter: alpha(opacity=10);
}
.font_show {
    color: #000;
    position: relative;/* 设置子元素为相对定位，可让子元素不继承Alpha值，保证字体颜色不透明 */        
}